GoAir — Refunds of cancelled tickets

Sir, I have booked tickets from Goa to Jammu for 23 Mar 2020 with PNR G2UWRL. Which was cancelled 3 hrs before departure and I visited Go Air counter same time and the GoAir representative assured me for refund in 15 days but due to lockdown the same was not refundable which was understood after few days they have massaged me that my booking was safe with them and can manage with in 1 year means whenever with in one year I ll travel the amount ll be debited in that booking which is not possible for me to travel in one year. when I have approached for the refunds to airlines they have denyed stating that only refunds ll de given to those who have tickets after 25 March. But I want to know where is my money if the flight was cancelled and not operated then where they spend my money and why they are denying for refunds.